%..................實現物體自動分割與識別.................%
%???作者：?????Dang?Changying
%???單位：?????Xi‘an?Jiaotong?University
%???日期：?????2013-09-12???????
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%
%
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clc;clear?all;close?all;
I=imread（‘20130522164509084.jpg‘）;

%rgb轉灰度
if?isrgb（I）==1
????I_gray=rgb2gray（I）;
else
????I_gray=I;
end

figureimshow（I）;
BW=edge（I_gray‘sobel‘（grayt